<!DOCTYPE html>
<html>
<head>
    <title></title>
    <script src="js/libs/jquery/jquery-2.1.1.js"></script>
</head>
<body>
<div>
<button>Test</button>
</div>
<div id="out">

</div>

</body>
<script>
    $('button').click(function(){
   /*     $.getJSON("data/db.json",function(data){
            alert(data.header.columns[1].text);
                    var str=JSON.stringify(data);
                    alert(str);
            $.each(data.header.columns,function(key, value){
                $('div#out').append('<p> '+key +' - '+ value.text+'</p>');
            })
                });
     */
    });
 </script>
</html>